公开(公告)号：US5203934A

公开(公告)日：1993-04-20

申请号：US726674

申请日：1991-07-08

Applicant: Hiroyuki Iida ,  Hiroyuki Koseki

Inventor： Hiroyuki Iida ,  Hiroyuki Koseki

IPC: B60C3/04

CPC classification number: B60C3/04 ,  B60C9/0292 ,  Y10T152/10819 ,  Y10T152/10837

Abstract: A pneumatic radial tire with high durable bead portions includes a pair of bead portions, a pair of sidewalls and a tread extending between the sidewalls, and further includes as a body reinforcement a carcass extending between the bead portions and consisting of plies whose cords are radially arranged. At least one ply being turned up about bead cores of the bead portions from inside to outside of the tire to form a turn-up portions. A carcass pass line in radial section of the tire in its self-holding position filled with 5% of a normal inner pressure under no-load condition includes curvature changing areas in a carcass profile curved toward the turned-up portions in the proximities of positions corresponding to a height of turn-up ends of the ply from a rim diameter line to cause compressive stresses in the bead portions near to the turn-up ends of the ply by deformations of the carcass when the normal inner pressure is filled in the tire. With the above arrangement, the durability at the bead portions of the tire is improved to an extent required for prolongation of life time obtained by recapping the tire repeatedly.

Abstract translation: 具有高耐用胎圈部分的充气子午线轮胎包括一对胎圈部分，一对侧壁和在侧壁之间延伸的胎面，并且还包括作为主体加强的胎体，胎体在胎圈部分之间延伸并且由帘线径向 安排。 至少一个帘布层从轮胎的内部到外部卷绕在胎圈部分的胎圈芯上，以形成一个卷起部分。 在空载状态下填充有正常内压的5％的自保持位置处的轮胎的径向截面中的胎体传递线包括在位置附近朝向折弯部弯曲的胎体轮廓中的曲率变化区域 对应于从轮辋直径线的帘布层的翻转端的高度，以通过当正常的内部压力填充在轮胎中时胎体的变形使得靠近帘布层的翻转端的胎圈部分产生压缩应力 。 通过上述布置，轮胎胎圈部分的耐久性提高到通过重复轮胎重新获得的延长寿命所需的程度。

公开(公告)号：US4934429A

公开(公告)日：1990-06-19

申请号：US265968

申请日：1988-11-02

Applicant: Hiroyuki Koseki ,  Takashi Kukimoto ,  Yoshinobu Shoyama

Inventor： Hiroyuki Koseki ,  Takashi Kukimoto ,  Yoshinobu Shoyama

IPC: B60C9/18 ,  B60C9/20 ,  B60C9/22

CPC classification number: B60C11/04 ,  B60C11/0306 ,  B60C9/20 ,  B60C9/22 ,  B60C2200/06 ,  Y10S152/03

Abstract: A low-section pneumatic radial tire having an aspect ratio of not more than 0.85 and excellent resistance to uneven wear and belt end separation comprises at least one carcass ply of radial construction, a tread and a belt of at least two belt plies. In this tire, the reinforcing layer composed of two or less reinforcing plies is arranged between an outermost belt ply in the radial direction and the carcass, and at least one reinforcing ply of the reinforcing layer is comprised of first and second reinforcing ply segments arranged at both sides with respect to the equator so that the ply segment is located between an outer point separated from a shoulder end at a distance corresponding to 1/7 of tread width and an inner point separated from the equator of the tire at a distance corresponding to 1/10 of tread width.

Abstract translation: 具有纵横比不大于0.85并且具有优异的耐不均匀磨损和带端分离的低截面充气子午线轮胎包括至少一个径向构造的胎体帘布层，至少两个带束层的胎面和带。 在该轮胎中，由两个或更少的加强层构成的加强层被布置在径向的最外侧带束层与胎体之间，并且加强层的至少一个增强层由第一和第二增强层段组成， 相对于赤道的两侧，使得帘布层段位于与肩部端部分离的距离对应于胎面宽度的1/7的外部点与从轮胎的赤道分离的内部点之间的距离对应于 胎面宽度的1/10。

公开(公告)号：US5253689A

公开(公告)日：1993-10-19

申请号：US715892

申请日：1991-06-19

Applicant: Kiyoshi Sato ,  Kuninobu Kadota ,  Tatsuro Shimada ,  Hiroyuki Koseki

Inventor： Kiyoshi Sato ,  Kuninobu Kadota ,  Tatsuro Shimada ,  Hiroyuki Koseki

IPC: B60C3/04 ,  B60C11/00 ,  B60C3/00

CPC classification number: B60C3/04 ,  B60C11/00

Abstract: A heavy duty radial tire includes at least one radial carcass extending from one bead portion to the other bead portion and using inextensible cords and a belt arranged outwardly of the radial carcass for reinforcing a tread of the tire. The tire comprises, during expanding of the tire from 5% to 100% of a normal inner pressure, a first profile portion expanding radially outwardly in a tread zone, a second profile portion depressing axially inwardly of the tire in a radially outer zone of a sidewall from one end of said tread to a tire maximum width position when filled with the normal inner pressure, and a third profile portion expanding axially outwardly of the tire in a radially inner zone of the sidewall from the tire maximum width position when filled with the normal inner pressure to a parting point of the sidewall from the rim, thereby properly distributing strains occurring in the tire in filling with the normal inner pressure.

Abstract translation: 重型子午线轮胎包括从一个胎圈部分延伸到另一个胎圈部分的至少一个径向胎体，并且使用不可伸长的帘线和布置在径向胎体外侧的带，用于加强轮胎胎面。 轮胎在将轮胎从正常内部压力的5％增加到100％的过程中包括在胎面区域中径向向外扩张的第一轮廓部分，在轮胎的径向外部区域中沿轴向向内凹陷的第二轮廓部分 侧壁从所述胎面的一端到满足正常内部压力的轮胎最大宽度位置;以及第三轮廓部分，其在填充有轮胎最大宽度位置时从侧轮胎的径向内部区域中从轮胎的最大宽度位置向轴向向外扩展 从边缘到侧壁的分离点的正常内部压力，从而在填充正常内部压力的同时适当地分布在轮胎中发生的应变。

公开(公告)号：US5205881A

公开(公告)日：1993-04-27

申请号：US409172

申请日：1989-09-19

Applicant: Yoshihide Kohno ,  Hiroyuki Koseki

Inventor： Yoshihide Kohno ,  Hiroyuki Koseki

IPC: B60C9/18 ,  B60C9/20 ,  B60C9/22

CPC classification number: B60C9/22 ,  B60C9/20 ,  Y10T152/10792

Abstract: A pneumatic tire for a passenger car includes a toroidal carcass anchored by a pair of beads and a belt made of laminated strips. The strips have a number of reinforcing elements of cords or filaments surrounding a crown of the toroidal carcass and are coated with a high molecular weight material having a modulus of elasticity less than that of the reinforcing elements. The belt is of a laminated construction of a first layer and a second layer of a single strip. The first layer has wave-shaped reinforcing elements arranged side by side and directing in parallel with an equatorial plane of the tire, while the second layer has reinforcing elements arranged in parallel with each other at angles of 15.degree.-75.degree., preferably 35.degree.-60.degree. with respect to the equatorial plane.

公开(公告)号：US4915151A

公开(公告)日：1990-04-10

申请号：US118127

申请日：1987-11-09

Applicant: Kiyoshi Sato ,  Kuninobu Kadota ,  Tatsuro Shimada ,  Hiroyuki Koseki

Inventor： Kiyoshi Sato ,  Kuninobu Kadota ,  Tatsuro Shimada ,  Hiroyuki Koseki

IPC: B60C3/04 ,  B60C11/00

CPC classification number: B60C11/00 ,  B60C3/04

Abstract: A heavy duty radial tire includes at least one radial carcass extending from one bead portion to the other bead portion and using inextensible cords and a belt arranged outwardly of the radial carcass for reinforcing a tread of the tire. The tire comprises, during expanding of the tire from 5% to 100% of a normal inner pressure, a first profile portion expanding radially outwardly in a tread zone, a second profile portion depressing axially inwardly of the tire in a radially outer zone of a sidewall from one end of said tread to a tire maximum width position when filled with the normal inner pressure, and a third profile portion expanding axially outwardly of the tire in a radially inner zone of the sidewall from the tire maximum width position when filled with the normal inner pressure to a parting point of the sidewall from the rim, thereby properly distributing strains occurring in the tire in filling with the normal inner pressure.

公开(公告)号：US5332016A

公开(公告)日：1994-07-26

申请号：US774224

申请日：1991-10-10

Applicant: Makoto Tsuruta ,  Hiroyuki Iida ,  Yasuhiko Kobayashi ,  Hiroyuki Koseki

Inventor： Makoto Tsuruta ,  Hiroyuki Iida ,  Yasuhiko Kobayashi ,  Hiroyuki Koseki

IPC: B60B21/10 ,  B60C13/00 ,  B60C13/02 ,  B60C15/00 ,  B60C15/02 ,  B60C15/024

CPC classification number: B60C13/02 ,  B60C13/00 ,  B60C15/024 ,  Y10T152/10819

Abstract: A pneumatic tire comprising a pair of beads, and a carcass ply consisting of a main body located axially inside the beads and outer ply portions extending along the main body of the carcass ply axially outside each of the beads. A number of circumferentially spaced recesses are provided in the outer surface of the tire between a radially outer end of each of the outer ply portions and a location corresponding to a maximum width of the tire, and the recesses has a depth equal to 1/10 time to 1/2 time as large as a thickness of those portions of the tire which are provided with the recesses. The inclined angle of a base portion of each of the beads is about 15.degree. relative to the rotary axis of the tire. In the tire, 0.4P.ltoreq.W.ltoreq.0.8P and B.ltoreq.0.06D in which P, B, W and D are a circumferential pitch of the recesses, a minimum distance between the adjacent recesses, a circumferential width of each of the recesses which is obtained by deducting the minimum distance B from the pitch P, and a diameter of a rim base, respectively.

Abstract translation: 一种充气轮胎，其包括一对胎圈，以及胎体帘布层，其由轴向位于胎圈内的主体和沿着胎体帘布层的主体沿着每个胎圈轴向延伸的外帘布层部分组成。 在轮胎的外表面中，在每个外层部分的径向外端和对应于轮胎的最大宽度的位置之间设有许多周向间隔开的凹槽，凹槽的深度等于1/10 时间达到设置有凹部的轮胎的那些部分的厚度的1/2倍。 每个胎圈的基部的倾斜角度相对于轮胎的旋转轴线约为15度。 在轮胎中，0.4P≤0.8P，B≤0.06D，其中P，B，W和D是凹槽的圆周间距，相邻凹槽之间的最小距离，圆周宽度 通过从节距P中减去最小距离B获得的每个凹部和边缘基座的直径分别。

公开(公告)号：US5261476A

公开(公告)日：1993-11-16

申请号：US704147

申请日：1991-05-22

Applicant: Yasuhiko Kobayashi ,  Hiroyuki Koseki

Inventor： Yasuhiko Kobayashi ,  Hiroyuki Koseki

IPC: B60C15/00 ,  B60C15/06

CPC classification number: B60C15/06 ,  B60C15/0607 ,  Y10T152/10837 ,  Y10T152/10846

Abstract: A pneumatic tire comprises a radial carcass of at least one carcass ply wound around each of bead cores from inside toward outside to form a turnup portion, an outer ply inclusive of the turnup portion containing cords each having a modulus of elasticity of not less than 2500 kg/mm.sup.2 and a diameter d, and a rubber stiffener arranged at its radially inward portion between the carcass ply and the outer ply. In a bead structure of such a pneumatic tire, the stiffener is divided into an inner stiffener portion and an outer stiffener portion around a specified boundary plane, and each of these stiffener portions is comprised of rubber having a given Shore A hardness, and a volume ratio of the outer stiffener portion in the stiffener is not less than 10%.

公开(公告)号：US5205880A

公开(公告)日：1993-04-27

申请号：US789890

申请日：1991-11-12

Applicant: Hiroyuki Iida ,  Makoto Tsuruta ,  Yasuhiko Kobayashi ,  Hiroyuki Koseki

Inventor： Hiroyuki Iida ,  Makoto Tsuruta ,  Yasuhiko Kobayashi ,  Hiroyuki Koseki

IPC: B60C13/00 ,  B60C15/00 ,  B60C15/024

CPC classification number: B60C15/024 ,  Y10T152/10819

Abstract: A pneumatic tire involves a toroidal carcass ply extending between a pair of beads. The carcass ply consists of a main body located axially inside the beads and a pair of outer ply portions each extending along the main body of the carcass ply and on an axially outer side of the bead. A recess is provided on an outer surface of the tire between a radially outer end of each of the outer ply portions of the tire and the tire maximum width location such that a part of the recess is located in a zone surrounded by a curve C--C, a curve D--D, and an E-axis. The curve C--C satisfies d/s=1-0.825.times..sqroot.2.64-(h/s), and the curves C--C, and D--D, the E-axis, d, s, h are defined as follows: a widthwise center line of the main body of the carcass ply being taken as A--A; a curve passing through the radially outer end of the outer ply portion and being parallel with the curve A--A being taken as B--B; an axis lying on the curve B--B and extending from the radially outer end of the outer ply portion toward the location having maximum width being taken as an H-axis; an axis extending from the radially outer end of the outer ply portion toward an interior of the tire in a direction orthogonal to the H-axis being taken as the E-axis; a distance from an origin as measured along the E-axis extending the radially outer end of the outer ply portion toward the interior of the tire in a direction orthogonal to the H-axis being taken as d, the origin being an intersection between the E-axis and the H-axis; a distance from the radially outer end of the outer ply portion to the center line A--A as measured on the F-axis being taken as s; a distance from the origin as measured along the H-axis being taken as h; and the curve D--D being a curve extending between the curves A--A and B--B and being parallel with the center line A--A, while being spaced from the center line A--A by 1/3s.

公开(公告)号：US5052457A

公开(公告)日：1991-10-01

申请号：US382594

申请日：1989-07-21

Applicant: Hiroyuki Iida ,  Hiroyuki Koseki

Inventor： Hiroyuki Iida ,  Hiroyuki Koseki

IPC: B60C15/00 ,  B60C3/04 ,  B60C9/08 ,  B60C15/06

CPC classification number: B60C3/04 ,  B60C9/0292

Abstract: A pneumatic radial tire with high durable bead portions includes a pair of bead portions, a pair of sidewalls and a tread extending between the sidewalls, and further includes as a body reinforcement a carcass extending between the bead portions and consisting of plies whose cords are radially arranged. At least one ply being turned up about bead cores of the bead portions from inside to outside of the tire to form a turn-up portions. A carcass pass line in radial section of the tire in its self-holding position filled with 5% of a normal inner pressure under no-load condition includes curvature changing areas in a carcass profile curved toward the turned-up portions in the proximities of positions corresponding to a height of turn-up ends of the ply from a rim diameter line to cause compressive stresses in the bead portions near to the turn-up ends of the ply by deformations of the carcass when the normal inner pressure is filled in the tire. With the above arrangement, the durability at the bead portions of the tire is improved to an extent required for prolongation of life time obtained by recapping the tire repeatedly.

公开(公告)号：US5004031A

公开(公告)日：1991-04-02

申请号：US320422

申请日：1989-03-07

Applicant: Kuninobu Kadota ,  Yoshihide Kohno ,  Hiroyuki Koseki

Inventor： Kuninobu Kadota ,  Yoshihide Kohno ,  Hiroyuki Koseki

IPC: B60C9/20 ,  B29D30/38 ,  B29K21/00 ,  B29K105/10 ,  B29L9/00 ,  B32B5/00 ,  B32B5/08 ,  B60C9/18 ,  B60C9/22 ,  B60C15/06

CPC classification number: B60C9/2204 ,  Y10T152/10792 ,  Y10T428/249935 ,  Y10T442/645

Abstract: A strip-like reinforcing laminate is comprised of at least two laminated strips each containing wave-like or zigzag reinforcing elements covered with a particular polymer material, wherein each reinforcing element in each of these strips has interlaced portions crossly lying on at least two reinforcing elements included in the adjoining strip, and the reinforcing elements in all of these strips are aligned in the same direction. Further, such a strip-like reinforcing laminate is used as a reinforcement in various parts of a pneumatic tire.